WO2002020338A2 - Device for fixing a spoke to a bicycle wheel rim - Google Patents

Device for fixing a spoke to a bicycle wheel rim Download PDF

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Publication number
WO2002020338A2
WO2002020338A2 PCT/FR2001/002786 FR0102786W WO0220338A2 WO 2002020338 A2 WO2002020338 A2 WO 2002020338A2 FR 0102786 W FR0102786 W FR 0102786W WO 0220338 A2 WO0220338 A2 WO 0220338A2
Authority
WO
WIPO (PCT)
Prior art keywords
nut
spoke
rim
sleeve
housing
Prior art date
Application number
PCT/FR2001/002786
Other languages
French (fr)
Inventor
Jean-Pierre Mercat
Pierre Feche
Original Assignee
Mavic S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mavic S.A. filed Critical Mavic S.A.
Publication of WO2002020338A2 publication Critical patent/WO2002020338A2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/06—Rims characterised by means for attaching spokes, i.e. spoke seats
    • B60B21/062—Rims characterised by means for attaching spokes, i.e. spoke seats for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00—Spoked wheels; Spokes thereof
    • B60B1/02—Wheels with wire or other tension spokes
    • B60B1/04—Attaching spokes to rim or hub
    • B60B1/041—Attaching spokes to rim or hub of bicycle wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00—Spoked wheels; Spokes thereof
    • B60B1/02—Wheels with wire or other tension spokes
    • B60B1/04—Attaching spokes to rim or hub
    • B60B1/043—Attaching spokes to rim
    • B60B1/048—Attaching spokes to rim by the use of screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/02—Rims characterised by transverse section
    • B60B21/025—Rims characterised by transverse section the transverse section being hollow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/06—Rims characterised by means for attaching spokes, i.e. spoke seats
    • B60B21/064—Rims characterised by means for attaching spokes, i.e. spoke seats characterised by shape of spoke mounting holes, e.g. elliptical or triangular

Definitions

  • the invention relates to a device for hooking a spoke to the rim of a bicycle wheel.
  • the invention also relates to a bicycle spoke wheel comprising such a device.
  • the invention relates to the attachment of a spoke to a rim of which only the lower bridge is equipped with a plurality of attachment holes.
  • the upper bridge is not drilled, with the exception of the hole provided for the valve.
  • the holes in the lower deck were produced by a discharge technique which pushes the material towards the interior of the box by creating a chimney. Once made, the chimney is tapped in order to allow hanging of the shelf by means of a tapped end.
  • the invention aims to further improve this type of construction so as to facilitate assembly of the wheel.
  • the present hooking device comprises a nozzle whose external wall is threaded at least locally to the diameter and to the pitch of the threaded bore of the rim, and a threaded nut to the diameter and to the pitch of the threaded end of the spoke, the nut having a head.
  • the endpiece has a through internal housing whose internal wall locally tightens to drill a retaining seat for the head of the nut, extended by a mouth provided for the body of the nut or the body of the spoke, as the dimensions in section of the housing are greater than the dimensions of the head and of the body of the nut or radius to allow a ball joint effect of the nut in the housing of the end piece
  • the device is characterized in that the opening of the end piece opposite the mouth is closed at least partially so as to prevent the exit of the nut head from the internal housing.
  • Figure 1 illustrates by a section at a tip a first embodiment of the invention.
  • FIG. 2 relates to an alternative embodiment
  • FIG. 3 shows another alternative embodiment.
  • FIG. 4 shows in perspective the end piece and the nut of FIG. 3.
  • Figure 5 relates to another alternative embodiment.
  • Figure 6 shows in perspective the tip and nut of Figure 5-
  • Figure 1 shows in longitudinal section a portion 1 of bicycle rim.
  • the rim is made of an aluminum alloy, and it has a lower bridge 2, an upper bridge 3 and two side walls 4a and 4b which connect the two bridges and rise beyond the upper bridge where they form a wing 5a, 5b for fastening the tire.
  • the section of Figure 1 is made at a hole 6 provided for the attachment of a spoke.
  • the drilling 6 is carried out by a push-back drilling technique which creates a sort of chimney 7 oriented towards the inside of the rim box, the box being the area delimited by the side walls and the bridges.
  • the internal wall of the chimney is cylindrical of revolution, and it is tapped.
  • the tapping of the chimney is carried out with the standardized pitch MS or M9.
  • the attachment device which will now be described is designed to hook the end of a spoke 10 to the bore 7.
  • the spoke is preferably a standard spoke, for example made of stainless steel, with a diameter close to 2 millimeters. It is a straight spoke or an angled spoke, depending on the method of attachment provided at the hub.
  • the spoke has a threaded end.
  • the diameter of the thread is 2.2 millimeters.
  • the attachment device mainly comprises a threaded end piece 12 and a nut 14.
  • the end piece 12 has a threaded coips 15 with the diameter and pitch of the chimney thread.
  • the length of the body is close to the length of the chimney.
  • the end piece has a collar 16 of substantially greater diameter.
  • the body is designed to be screwed into the bore 7, the flange being forcibly tightened against the lower deck, and as shown in FIG. 1 against the small protruding rim 18 which forms at the base of the chimney.
  • the nozzle has a housing 20 which passes right through it.
  • the wall of the housing 20 tightens so as to form a seat 21 followed by a mouthpiece 22.
  • the seat has a hemispherical shape
  • the mouthpiece has a frustoconical shape widening towards the bottom, that is to say towards the hub.
  • the nut 14 is housed in the housing 20.
  • the nut has an enlarged head 25 and a body 26. In section, the dimensions of the body of the nut are less than the smallest diameter of the mouthpiece. On the other hand, the maximum diameter of the head is greater than this smaller diameter of the mouthpiece.
  • the nut is free to rotate about the longitudinal axis defined by its body.
  • the nut 14 is pierced right through with a threaded orifice with the diameter and the pitch of the threaded end 11 of the spoke 10, and the body 26 has an area 27 with an imprint, for example of square section provided for a clamping tool,
  • the head preferably has a hemispherical lower surface designed to rest against the upper surface of the seat. A slight patella effect is thus obtained thanks to the cooperation of the two hemispherical surfaces, and the possibility for the body 14 to evolve in the frustoconical mouthpiece 22.
  • the angle at the top of the cone is preferably close to S degrees.
  • This advantageous arrangement makes it possible to pierce the housing 7 in a direction which is not necessarily aligned with the final direction of the spoke, once the wheel has been assembled.
  • an intermediate orientation is chosen between a radial orientation relative to the rim, and the final orientation of the spoke. This simplifies the drilling operation. Thanks to " the ball-joint effect previously described, the nut 14 takes on its own direction in the endpiece 12 the orientation dictated to it by the radius.
  • the tip which has been described is used in the following manner. After having put the nut 14 in the housing of the end piece 12, the end piece is screwed and forced into the tapped hole 7. The spoke is engaged on the nut before or after the end piece is screwed on the rim. The spoke tension is adjusted by more or less screwing the nut 14 onto the threaded end 11 of the spoke 10. This latter operation can advantageously be carried out using a traditional manual or automatic tool.
  • the opening 60 of the housing 20 of the end piece opposite to the mouth 22 is closed so as to prevent the exit of the enlarged head 25 of the nut from the end piece.
  • the opening 60 is closed by a cylindrical sleeve 61 whose outer diameter corresponds substantially to the internal diameter of the housing 20.
  • the sleeve is fitted into the housing 20 after the establishment of the nut in the end cap.
  • Height of the sleeve substantially corresponds to the distance between the head "extended nut and the upper deck 3 of the rim, once the clamped tip in its housing.
  • the inside of the sleeve has a relatively large diameter so that the threaded end of the spoke can penetrate it and find its place therein with the angle that the spoke takes relative to the end piece.
  • the manufacture of the wheel is facilitated. Indeed, it is possible to prepare in advance and handle without special care the assembly formed by the tip, the nut and the sleeve. In addition, it is possible to manufacture, transport and / or store rims with their end caps screwed into their respective holes, ready to receive the spokes.
  • the sleeve With regard to the nature and the height of the sleeve, a height slightly greater than that mentioned above could be provided, and a material of the sleeve which is somewhat unbendable so that when the end piece is screwed, the sleeve is slightly compressed between the head 25 of the nut and the lower axle 3 of the rim. In this way, the sleeve exerts a braking friction on the nut and prevents its loosening,
  • FIG. 2 represents an alternative embodiment where the sleeve 64 has in its upper part a shouldered zone 65 of larger external diameter which bears against the upper edge of the endpiece 62.
  • the enlarged head of the nut may have an axial clearance inside the housing of the nozzle.
  • the end 66 of the nut 63 remains sufficiently projecting relative to the endpiece 62 to facilitate the attachment of a tool for screwing the nut onto the spoke.
  • the tip 71 is constructed with four legs 71a, 71b, 71c, 71d which extend initially in a direction parallel to the axial direction of the tip.
  • the tabs are folded down towards the axis of the end piece as shown in FIGS. 3 and 4, so as to partially close the opening of the end piece and thus imprison the head of the nut.
  • the number and size of the legs are not limiting. 31 suffices that they hinder the passage of the enlarged head of the nut through the opening 73 of the end piece.
  • Figures 5 and 6 relate to an alternative embodiment.
  • the opening 74 of the end piece 75 is partially closed by claws produced by local deformation of the wall of the end piece.
  • the wall of the nozzle 75 is locally deformed by four claws 76a, 76b, 76c, 7 ⁇ d which are produced by striking with the aid of an appropriate punch.
  • the tips of the claws are sufficiently tightened from one another to hinder the passage of the enlarged head of the nut 78 through the opening 74 of the endpiece
  • the number of claws is not limiting, and a single claw could suffice provided that it hinders the exit of the head of the nut.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)

Abstract

The invention concerns a device for fixing a spoke to a bicycle wheel rim comprising a connecting endpiece (12) whereof the outer wall is threaded at least locally to fit the diameter and the pitch of the rim tapped bore (7), and a nut (14) tapped to fit the diameter and the pitch of the spoke threaded end, the nut having an enlarged head (25). The connecting endpiece has an inner through housing (20) whereof the inside wall is locally contracted to form a retaining seat (21) for a nut head, extended by an opening for the body of the nut or the body of the spoke. The device is characterised in that the orifice (60) of the connecting endpiece opposite the opening is closed at least partly so as to prevent the nut head from projecting outside the inner housing. The closure is produced by a directly mounted sleeve (61). It can also be produced by a local deformation of the connecting endpiece wall.

Description

Dispositif d'accrochage d'un rayon à la iante d'une roue de bicyclette Device for hooking a spoke to the rim of a bicycle wheel
L'invention concerne un dispositif d'accrochage d'un rayon à la jante d'une roue de bicyclette. L'invention concerne également une roue à rayons de bicyclette comprenant un tel dispositif.The invention relates to a device for hooking a spoke to the rim of a bicycle wheel. The invention also relates to a bicycle spoke wheel comprising such a device.
Plus particulièrement, l'invention concerne l'accrochage d'un rayon à une jante dont seul le pont inférieur est équipé d'une pluralité de perçages d'accrocliage. Le pont supérieur n'est pas percé, à l'exception de l'orifice prévu pour la valve.More particularly, the invention relates to the attachment of a spoke to a rim of which only the lower bridge is equipped with a plurality of attachment holes. The upper bridge is not drilled, with the exception of the hole provided for the valve.
Une telle jante est connue de la demande de brevet publiée sous le numéro EP 818 328, selon le mode de réalisation illustré à la figure 13.Such a rim is known from the patent application published under the number EP 818 328, according to the embodiment illustrated in FIG. 13.
Selon ce mode de réalisation, les perçages du pont inférieur ont été réalisés par une technique de refoulement qui repousse la matière vers l'intérieur du caisson en créant une cheminée. Une fois réalisée, la cheminée est taraudée afin de permettre l'accrochage du rayon au moyen d'un embout taraudé.According to this embodiment, the holes in the lower deck were produced by a discharge technique which pushes the material towards the interior of the box by creating a chimney. Once made, the chimney is tapped in order to allow hanging of the shelf by means of a tapped end.
La construction d'une telle jante est avantageuse car elle évite le perçage du pont supérieur. De ce fait, elle permet de réaliser des roues plus rigides.The construction of such a rim is advantageous because it avoids drilling the upper deck. Therefore, it allows for more rigid wheels.
Une difficulté est cependant qu'il faut des rayons spéciaux ou des embouts d'accrochage particuliers pour réaliser une roue complète.One difficulty, however, is that special spokes or special attachment ends are required to produce a complete wheel.
Une autre difficulté réside dans le fait que les embouts actuellement connus ne donnent qu'une faible tolérance d'orientation entre le rayon et le perçage, ce qui oblige de réaliser les perçages avec une grande précision angulaire.Another difficulty resides in the fact that the tips currently known give only a small tolerance of orientation between the radius and the hole, which means that the holes have to be made with great angular precision.
La demande de brevet non publiée déposée sous le numéro FR 00/08351 propose des constructions améliorées où le rayon de type traditionnel est retenu par un écrou également de type traditionnel qui est logé à l'intérieur de la vis creuse d'accrochage.The unpublished patent application filed under the number FR 00/08351 proposes improved constructions where the radius of the traditional type is retained by a nut also of the traditional type which is housed inside the hollow hooking screw.
L'invention vise à améliorer encore ce type de construction de façon à faciliter l'assemblage de la roue.The invention aims to further improve this type of construction so as to facilitate assembly of the wheel.
A cet effet le présent dispositif d'accrochage comprend un embout dont la paroi externe est filetée au moins localement au diamètre et au pas du perçage taraudé de la jante, et un écrou taraudé au diamètre et au pas de l'extrémité filetée du rayon, l'écrou ayant une tête. L'embout présente un logement interne traversant dont la paroi interne se resserre localement pour foraier un siège de retenue pour la tête de l'écrou, prolongé par une embouchure prévue pour le corps de l'écrou ou le corps du rayon, que les dimensions en section du logement sont supérieures aux dimensions de la tβte et du corps de l'écrou ou du rayon pour permettre un effet de rotule de l'écrou dans le logement de l'emboutTo this end, the present hooking device comprises a nozzle whose external wall is threaded at least locally to the diameter and to the pitch of the threaded bore of the rim, and a threaded nut to the diameter and to the pitch of the threaded end of the spoke, the nut having a head. The endpiece has a through internal housing whose internal wall locally tightens to drill a retaining seat for the head of the nut, extended by a mouth provided for the body of the nut or the body of the spoke, as the dimensions in section of the housing are greater than the dimensions of the head and of the body of the nut or radius to allow a ball joint effect of the nut in the housing of the end piece
Le dispositif est caractérisé par le fait que l'ouverture de l'embout opposée à l'embouchure est obturée au moins partiellement de façon à empêcher la sortie de la tête d'écrou hors du logement interne.The device is characterized in that the opening of the end piece opposite the mouth is closed at least partially so as to prevent the exit of the nut head from the internal housing.
Grâce à ce mode de construction, le montage de la roue est simplifié dans la mesure où l'écrou ne peut pas se séparer de l'embout. L'invention sera mieux comprise en se référant à la description ci-dessous et aux dessins en annexe qui lui sont attachés.Thanks to this construction method, the mounting of the wheel is simplified insofar as the nut cannot separate from the end piece. The invention will be better understood by referring to the description below and to the attached drawings which are attached to it.
La figure 1 illustre par une coupe au niveau d'un embout un premier mode de mise en oeuvre de l'invention.Figure 1 illustrates by a section at a tip a first embodiment of the invention.
La figure 2 est relative à une variante de réalisation,FIG. 2 relates to an alternative embodiment,
La figure 3 montre une autre variante de réalisation.Figure 3 shows another alternative embodiment.
La figure 4 représente en perspective l'embout et l'écrou de la figure 3.FIG. 4 shows in perspective the end piece and the nut of FIG. 3.
La figure 5 est relative à une autre variante de réalisation.Figure 5 relates to another alternative embodiment.
La figure 6 représente en perspective l'embout et l'écrou de la figure 5-Figure 6 shows in perspective the tip and nut of Figure 5-
La figure 1 représente en coupe longitudinale une portion 1 dé jante de bicyclette. De façon connue,, la jante est réalisée en un alliage d'aluminium, et elle a un pont inférieur 2, un pont supérieur 3 et deux parois latérales 4a et 4b qui relient les deux ponts et s'élèvent au- delà du pont supérieur où elles forment une aile 5a, 5b d'accrochage du pneumatique.Figure 1 shows in longitudinal section a portion 1 of bicycle rim. In a known manner, the rim is made of an aluminum alloy, and it has a lower bridge 2, an upper bridge 3 and two side walls 4a and 4b which connect the two bridges and rise beyond the upper bridge where they form a wing 5a, 5b for fastening the tire.
La coupe de la figure 1 est réalisée au niveau d'un perçage 6 prévu pour l'accrochage d'un rayon.The section of Figure 1 is made at a hole 6 provided for the attachment of a spoke.
Le perçage 6 est réalisé par une technique de perçage par refoulement qui crée une sorte de cheminée 7 orientée vers l'intérieur du caisson de la jante, le caisson étant la zone délimitée par les parois latérales et les ponts.The drilling 6 is carried out by a push-back drilling technique which creates a sort of chimney 7 oriented towards the inside of the rim box, the box being the area delimited by the side walls and the bridges.
La paroi interne de la cheminée est cylindrique de révolution, et elle est taraudée. Par exemple, le taraudage de la cheminée est réalisé au pas normalisé MS ou M9.The internal wall of the chimney is cylindrical of revolution, and it is tapped. For example, the tapping of the chimney is carried out with the standardized pitch MS or M9.
Le dispositif d'accrochage qui va être décrit maintenant est prévu pour accrocher l'extrémité d'un rayon 10 au perçage 7. Le rayon est de préférence un rayon standard, par exemple en acier inoxydable, de diamètre voisin de 2 millimètres. H s'agit d'un rayon droit ou d'un rayon coudé, selon le mode d'accrochage prévu au niveau du moyeu.The attachment device which will now be described is designed to hook the end of a spoke 10 to the bore 7. The spoke is preferably a standard spoke, for example made of stainless steel, with a diameter close to 2 millimeters. It is a straight spoke or an angled spoke, depending on the method of attachment provided at the hub.
De façon usuelle, le rayon a une extrémité filetée I Habituellement, le diamètre du filetage est de 2,2 millimètres.Usually, the spoke has a threaded end. Usually, the diameter of the thread is 2.2 millimeters.
Le dispositif d'accrochage comprend principalement un embout fileté 12 et un écrou 14.The attachment device mainly comprises a threaded end piece 12 and a nut 14.
L'embout 12 a un coips 15 fileté au diamètre et au pas du taraudage de la cheminée. La longueur du corps est voisine de la longueur de la cheminée. A la base du corps, l'embout a une collerette 16 de diamètre sensiblement supérieur. Le corps est prévu pour être vissé dans le perçage 7, la collerette étant serrée à force contre le pont inférieur, et comme le représente la figure 1 contre le petit rebord 18 en saillie qui se forme à la base de la cheminée.The end piece 12 has a threaded coips 15 with the diameter and pitch of the chimney thread. The length of the body is close to the length of the chimney. At the base of the body, the end piece has a collar 16 of substantially greater diameter. The body is designed to be screwed into the bore 7, the flange being forcibly tightened against the lower deck, and as shown in FIG. 1 against the small protruding rim 18 which forms at the base of the chimney.
Sous le rébord, se trouve une tête 19 avec une empreinte prévue pour l'accouplement d'un outil de serrage.Under the ledge, there is a head 19 with a recess provided for the coupling of a clamping tool.
Intérieurement, l'embout a un logement 20 qui le traverse de part en part.Internally, the nozzle has a housing 20 which passes right through it.
Vers la base de l'embout, la paroi du logement 20 se resserre de façon à former un siège 21 suivi d'une embouchure 22. De préférence, le siège a une forme hémisphérique, et l'embouchure une forme tronconique s'évasant vers le bas, c'est-à-dire en direction du moyeu. L'écrou 14 est logé dans le logement 20. L'écrou présente une tête élargie 25 et un corps 26. En section, les dimensions du corps de l'écrou sont inférieures au plus petit diamètre de rembouchure. Par contre le diamètre maximum de la tête est supérieur à ce plus petit diamètre de l'embouchure. A l'intérieur du logement 20, l'écrou est libre en rotation autour de l'axe longitudinal défini par son corps.Towards the base of the endpiece, the wall of the housing 20 tightens so as to form a seat 21 followed by a mouthpiece 22. Preferably, the seat has a hemispherical shape, and the mouthpiece has a frustoconical shape widening towards the bottom, that is to say towards the hub. The nut 14 is housed in the housing 20. The nut has an enlarged head 25 and a body 26. In section, the dimensions of the body of the nut are less than the smallest diameter of the mouthpiece. On the other hand, the maximum diameter of the head is greater than this smaller diameter of the mouthpiece. Inside the housing 20, the nut is free to rotate about the longitudinal axis defined by its body.
De façon classique, l'écrou 14 est percé de part en part d'un orifice taraudé au diamètre et au pas de l'extrémité filetée 11 du rayon 10, et le corps 26 a une zone 27 avec une empreinte par exemple de section carrée prévue pour un outil de serrage,Conventionally, the nut 14 is pierced right through with a threaded orifice with the diameter and the pitch of the threaded end 11 of the spoke 10, and the body 26 has an area 27 with an imprint, for example of square section provided for a clamping tool,
La tβte a de préférence une surface inférieure hémisphérique prévue pour s'appuyer contre la surface supérieure du siège. Un léger effet de rotule est ainsi obtenu grâce à la coopération des deux surfaces hémisphériques, et la possibilité pour le corps 14 d'évoluer dans l'embouchure tronconique 22. L'angle au sommet du cône est de préférence voisin de S degrés.The head preferably has a hemispherical lower surface designed to rest against the upper surface of the seat. A slight patella effect is thus obtained thanks to the cooperation of the two hemispherical surfaces, and the possibility for the body 14 to evolve in the frustoconical mouthpiece 22. The angle at the top of the cone is preferably close to S degrees.
Cette disposition avantageuse permet de percer le logement 7 selon une direction qui n'est pas nécessairement alignée avec la direction finale du rayon, une fois la roue assemblée. Par exemple, on choisit pour le perçage 7 une orientation intermédiaire entre une orientation radiale par rapport à la jante, et l'orientation finale du rayon. Ceci permet de simplifier l'opération de perçage. Grâce" à l'effet de rotule précédemment décrit, l'écrou 14 prend de lui- même dans l'embout 12 l'orientation qui lui est dictée par le rayon.This advantageous arrangement makes it possible to pierce the housing 7 in a direction which is not necessarily aligned with the final direction of the spoke, once the wheel has been assembled. For example, for drilling 7, an intermediate orientation is chosen between a radial orientation relative to the rim, and the final orientation of the spoke. This simplifies the drilling operation. Thanks to " the ball-joint effect previously described, the nut 14 takes on its own direction in the endpiece 12 the orientation dictated to it by the radius.
L'embout qui a été décrit est utilisé de la façon suivante. Après avoir mis en place l'écrou 14 dans le logement de l'embout 12, l'embout est vissé et seiré â force dans le perçage taraudé 7. Le rayon est engagé sur l'écrou avant ou après le vissage de l'embout sur la jante. L'ajustement en tension du rayon est réalisé en vissant plus ou moins l'écrou 14 sur l'extrémité filetée 11 du rayon 10. Cette dernière opération peut avantageusement être réalisée au moyen d'un outil manuel ou automatique traditionnel.The tip which has been described is used in the following manner. After having put the nut 14 in the housing of the end piece 12, the end piece is screwed and forced into the tapped hole 7. The spoke is engaged on the nut before or after the end piece is screwed on the rim. The spoke tension is adjusted by more or less screwing the nut 14 onto the threaded end 11 of the spoke 10. This latter operation can advantageously be carried out using a traditional manual or automatic tool.
Selon la présente invention, l'ouverture 60 du logement 20 de l'embout opposée à T^mbouchure 22 est obturée de façon à empêcher la sortie de la tê.t& élargie 25 de l'écrou hors de l'embout-According to the present invention, the opening 60 of the housing 20 of the end piece opposite to the mouth 22 is closed so as to prevent the exit of the enlarged head 25 of the nut from the end piece.
Selon le mode de réalisation illustré en figure 1, l'ouverture 60 est obturée par un manchon cylindrique 61 dont le diamètre extérieur correspond sensiblement au diamètre interne du logement 20. Le manchon est emmanché dans le logement 20 après la mise en place de l'écrou dans l'embout. On peut prévoir un frottement plus ou moins important entre le manchon et l'embout pour que l'ensemble une fois monté puisse être manipulé sans prendre de précaution particulière. La hauteur du manchon correspond sensiblement à la distance entre la tête" élargie de l'écrou et le pont supérieur 3 de la jante, une fois l'embout serré dans son logement.According to the embodiment illustrated in Figure 1, the opening 60 is closed by a cylindrical sleeve 61 whose outer diameter corresponds substantially to the internal diameter of the housing 20. The sleeve is fitted into the housing 20 after the establishment of the nut in the end cap. One can provide a more or less significant friction between the sleeve and the tip so that the assembly once mounted can be handled without taking any special precautions. Height of the sleeve substantially corresponds to the distance between the head "extended nut and the upper deck 3 of the rim, once the clamped tip in its housing.
De cette façon, une fois l'embout vissé dans son perçage 7, en l'absence du rayon, non seulement il n'y a pas de risque que l'écrou se sépare accidentellement de l'embout, mais la zone 27 de l'écrou est maintenue en saillie hors de l'embout, quelle que soit la position de la jante. L'opération d'assemblage des rayons se trouve de ce fait simplifiée.In this way, once the endpiece is screwed into its bore 7, in the absence of the spoke, not only is there no risk that the nut accidentally separates from the endpiece, but the zone 27 of the nut is kept projecting from the end piece, regardless of the position of the rim. The assembly operation of the spokes is therefore simplified.
L'intérieur du manchon a un diamètre relativement important pour que l'extrémité filetée du rayon puisse y pénétrer et y trouver Kbrement sa place avec l'angle que le rayon prend relativement à l'emboutThe inside of the sleeve has a relatively large diameter so that the threaded end of the spoke can penetrate it and find its place therein with the angle that the spoke takes relative to the end piece.
Ainsi, la fabrication de la roue est facilitée. En effet, il est possible de préparer à l'avance et de manipuler sans précaution particulière l'ensemble formé par l'embout, l'écrou et le manchon. En outre, il est possible de fabriquer, de transporter et/ou de stocker des jantes avec leurs embouts viss s dans leur perçage respectif, prêts à recevoir les rayons.Thus, the manufacture of the wheel is facilitated. Indeed, it is possible to prepare in advance and handle without special care the assembly formed by the tip, the nut and the sleeve. In addition, it is possible to manufacture, transport and / or store rims with their end caps screwed into their respective holes, ready to receive the spokes.
En ce qui concerne la nature et la hauteur du manchon, on pourrait prévoir une hauteur légèrement supérieure à céύe précédemment mentionnée, et une matière du manchon quelque peu défbimable pour qu'au vissage de l'embout, le manchon soit légèrement comprimé entre la tête 25 de l'écrou et le pont inférieur 3 de la jante. De cette façon, le manchon exerce un frottement de freinage sur l'écrou et évite son desserrage,With regard to the nature and the height of the sleeve, a height slightly greater than that mentioned above could be provided, and a material of the sleeve which is somewhat unbendable so that when the end piece is screwed, the sleeve is slightly compressed between the head 25 of the nut and the lower axle 3 of the rim. In this way, the sleeve exerts a braking friction on the nut and prevents its loosening,
La figure 2 représente une variante de réalisation où le manchon 64 a dans sa partie supérieure une zone épaulée 65 de diamètre externe plus important qui prend appui contre le rebord supérieur de l'embout 62. Selon cette variante, la tête élargie de l'écrou peut avoir un jeu axial à l'intérieur du logement de l'embout. Toutefois, l'extrémité 66 de l'écrou 63 reste suffisamment en saillie par rapport à l'embout 62 pour faciliter l'accrochage d'un outil de vissage de l'écrou sur le rayon.FIG. 2 represents an alternative embodiment where the sleeve 64 has in its upper part a shouldered zone 65 of larger external diameter which bears against the upper edge of the endpiece 62. According to this variant, the enlarged head of the nut may have an axial clearance inside the housing of the nozzle. However, the end 66 of the nut 63 remains sufficiently projecting relative to the endpiece 62 to facilitate the attachment of a tool for screwing the nut onto the spoke.
Comme dans le cas précédent, on peut prévoir un fiottement entre le manchon et l'embout pour que une fois assemblé, l'ensemble puisse être manipulé sans précaution particulière.As in the previous case, provision can be made for a float between the sleeve and the end piece so that, once assembled, the assembly can be handled without particular precautions.
Selon le mode de réalisation des figures 3 et 4, l'embout 71 est construit avec quatre pattes 71a, 71b, 71c, 71d qui s'étendent initialement selon une direction parallèle à la direction axiale de l'embout.According to the embodiment of Figures 3 and 4, the tip 71 is constructed with four legs 71a, 71b, 71c, 71d which extend initially in a direction parallel to the axial direction of the tip.
Une fois l'écrou 72 introduit dans le logement de l'embout, les pattes sont rabattues vers l'axe de l'embout ainsi que le représentent les figures 3 et 4, de façon à obturer en partie l'ouverture de l'embout et emprisonner ainsi la tête de l'écrou. Le nombre et la dimension des pattes ne sont pas limitatifs. 31 suffit qu'elles entravent le passage de la tête élargie de l'écrou au travers de l'ouverture 73 de l'embout.Once the nut 72 has been introduced into the housing of the end piece, the tabs are folded down towards the axis of the end piece as shown in FIGS. 3 and 4, so as to partially close the opening of the end piece and thus imprison the head of the nut. The number and size of the legs are not limiting. 31 suffices that they hinder the passage of the enlarged head of the nut through the opening 73 of the end piece.
Les figures 5 et 6 sont relatives à une variante de réalisation. Au lieu d'être retenue par des pattes, l'ouverture 74 de l'embout 75 est obturée en partie par des griffes réalisées par une déformation locale de la paroi de l'embout. Par exemple, comme le représente la figure 6, la paroi de l'embout 75 est déformée localement par quatre griffes 76a, 76b, 76c, 7όd qui sont réalisées par une frappe à l'aide d'un poinçon de foπne appropriée. Les pointes des griffes sont suffisamment resserrées les unes des autres pour entraver le passage de la tête élargie de l'écrou 78 au travers de l'ouverture 74 de l'embout Comme dans le cas précédent, le nombre de griffes n'est pas limitatif, et une seule griffe pourrait suffire pourvu qu'elle entrave la sortie de la têt de l'écrou.Figures 5 and 6 relate to an alternative embodiment. Instead of being retained by lugs, the opening 74 of the end piece 75 is partially closed by claws produced by local deformation of the wall of the end piece. For example, as shown in FIG. 6, the wall of the nozzle 75 is locally deformed by four claws 76a, 76b, 76c, 7όd which are produced by striking with the aid of an appropriate punch. The tips of the claws are sufficiently tightened from one another to hinder the passage of the enlarged head of the nut 78 through the opening 74 of the endpiece As in the previous case, the number of claws is not limiting, and a single claw could suffice provided that it hinders the exit of the head of the nut.
Naturellement la présente description n'est donnée qu'à titre indicatif, et l'on pourrait adopter d'autres mises en oeuvre de l'invention sans pour autant sortir du cadre de celle-ci. Of course, this description is given for information only, and other implementations of the invention could be adopted without departing from the scope thereof.

Claims

REVENDICATIONS
1- Dispositif d'accrochage d'un rayon à la jante d'une bicyclette comprenant un embout (12, 62, 70, 75) dont la paroi externe est filetée au moins localement au diamètre et au pas du perçage taraudé de la jante, et un écrou (14, 63, 72, 78) taraudé au diamètre et au pas de l'extrémité filetée du rayon, l'écrou ayant une tête élargie (25), l'embout présentant un logement interne traversant (20) dont la paroi interne se resserre localement pour former un siège de retenue (26) pour la tête de l'écrou, prolongé par une embouchure (22) prévue pour le corps de l'écrou ou le corps du rayon, les dimensions en section du logement étant supérieures aux dimensions de la tête et du corps de l'écrou ou du rayon pour permettre un effet de rotule de l'écrou dans le logement de l'embout, caractérisé par le fait que l'ouverture (60, 74) de l'embout opposée à l'embouchure est obturée au moins partiellement de façon à empêcher la sortie de la tête d'écrou hors du logement interne de l'embout.1- Device for hooking a spoke to the rim of a bicycle comprising a nozzle (12, 62, 70, 75) the external wall of which is threaded at least locally to the diameter and to the pitch of the tapped bore of the rim, and a nut (14, 63, 72, 78) threaded to the diameter and pitch of the threaded end of the spoke, the nut having an enlarged head (25), the end piece having a through internal housing (20) the internal wall tightens locally to form a retaining seat (26) for the head of the nut, extended by a mouth (22) provided for the body of the nut or the body of the spoke, the dimensions in section of the housing being larger than the dimensions of the head and the body of the nut or of the spoke to allow a ball joint effect of the nut in the housing of the end piece, characterized in that the opening (60, 74) of the end piece opposite the mouthpiece is at least partially closed so as to prevent the exit of the nut head from the housing internal mouthpiece.
2- Dispositif selon la revendication 1, caractérisé par le fait que l'ouverture (60) est obturée partiellement par un manchon cylindrique (61) emmanché dans l'ouverture (60) à de l'embout2- Device according to claim 1, characterized in that the opening (60) is partially closed by a cylindrical sleeve (61) fitted in the opening (60) at the end
3- Dispositif selon la revendication 2, caractérisé par le fait que le diamètre externe du manchon (61) est égal au diamètre du logement (60) de l'embout.3- Device according to claim 2, characterized in that the external diameter of the sleeve (61) is equal to the diameter of the housing (60) of the nozzle.
4- Dispositif selon la revendication 2, caractérisé par le fait que le manchon (61) est emmanché avec frottement à l'intérieur de l'ouverture (60) de l'embout.4- Device according to claim 2, characterized in that the sleeve (61) is fitted with friction inside the opening (60) of the nozzle.
5- Dispositif selon la revendication 2 prévu pour une jante (1) à deux ponts (2, 3) supérieur et inférieur, caractérisé par le fait que la longueur du manchon correspond sensiblement à la distance entre la tête élargie de l'écrou et le pont supérieur de la jante, une fois l'embout vissé dans son perçage (7).5- Device according to claim 2 provided for a rim (1) with two bridges (2, 3) upper and lower, characterized in that the length of the sleeve corresponds substantially to the distance between the enlarged head of the nut and the upper bridge of the rim, once the end cap is screwed into its hole (7).
6- Dispositif selon la revendication 2 prévu pour une jante (1) à deux ponts (2, 3) supérieur et inférieur, caractérisé par le fait que la longueur du manchon est supérieure à la6- Device according to claim 2 provided for a rim (1) with two bridges (2, 3) upper and lower, characterized in that the length of the sleeve is greater than the
"distance entre la tête élargie de l'écrou et le pont supérieur de la jante, une fois l'embout vissé dans son perçage (7), et que le manchon est réalisé en une matière déformable."distance between the enlarged head of the nut and the upper bridge of the rim, once the endpiece is screwed into its bore (7), and the sleeve is made of a deformable material.
7- Dispositif selon la revendication 1, caractérisé par le fait que l'ouverture de l'embout est obturée en partie par un manchon (64) ayant une zone épaulée (65) de diamètre externe agrandi qui est prévue pour reposer contre le rebord supérieur de l'embout.7- Device according to claim 1, characterized in that the opening of the tip is closed in part by a sleeve (64) having a shoulder area (65) of enlarged external diameter which is intended to rest against the upper edge from the mouthpiece.
8- Dispositif selon la revendication 1, caractérisé par le fait que l'embout (70) a au moins une patte (71a, 71b, 71c, 71d) qui est initialement dirigée parallèlement à la direction axiale de l'embout et qui est rabattue ensuite en direction de l'axe de l'embout8- Device according to claim 1, characterized in that the end piece (70) has at least one lug (71a, 71b, 71c, 71d) which is initially directed parallel to the axial direction of the end piece and which is folded down then towards the axis of the nozzle
9- Dispositif selon la revendication 1, caractérisé par le fait que l'ouverture (74) de l'embout (75) est obturée par au moins ie griffe (76a, 76b, 76c, 76d) réalisée par une déformation locale de la paroi de l'embout. 10- Jante de bicyclette pour une roue à rayons, caractérisée par le fait qu'elle présente au moins un dispositif d'accrochage de rayon défini par l'une quelconque des revendications précédentes. 9- Device according to claim 1, characterized in that the opening (74) of the nozzle (75) is closed by at least ie claw (76a, 76b, 76c, 76d) produced by a local deformation of the wall from the mouthpiece. 10- Bicycle rim for a spoke wheel, characterized in that it has at least one spoke attachment device defined by any one of the preceding claims.
PCT/FR2001/002786 2000-09-07 2001-09-07 Device for fixing a spoke to a bicycle wheel rim WO2002020338A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0011680A FR2813558B3 (en) 2000-09-07 2000-09-07 DEVICE FOR HANGING A RADIUS AT THE RIM OF A BICYCLE WHEEL
FR00/11680 2000-09-07

Publications (1)

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WO2002020338A2 true WO2002020338A2 (en) 2002-03-14

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6846047B2 (en) 2001-09-28 2005-01-25 Rolf Dietrich Tensioned spoked wheel assembly and spoke rim and nipple therefor
WO2006070415A1 (en) * 2004-12-30 2006-07-06 Alpina Raggi S.P.A. Wheel for mounting tires of the tubeless type
US20120212036A1 (en) * 2011-02-23 2012-08-23 Shimano Inc. Spoke attachment structure
TWI386321B (en) * 2009-02-20 2013-02-21 Gigantex Composite Technologies Co Ltd Combination of rim and spoke
TWI403425B (en) * 2009-11-02 2013-08-01 Chang Hui Lin Bicycle spoke strip combination
EP3238953A1 (en) * 2016-03-31 2017-11-01 Honda Motor Co., Ltd. Tubeless spoked wheel structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3495161B1 (en) * 2017-12-05 2023-08-23 Campagnolo S.r.l. Insert for a rim of a spoked wheel for bicycle and respective spoked wheel for bicycle
EP3957493A1 (en) 2017-12-05 2022-02-23 Campagnolo S.r.l. Adjustment tool for adjusting the tension of a spoke of a bicycle spoked wheel
US20210155033A1 (en) * 2019-11-22 2021-05-27 Ruotemilano S.R.L. Spoked wheel structure
IT202000018217A1 (en) * 2020-07-28 2022-01-28 Campagnolo Srl SPOKE ATTACHMENT ASSEMBLY FOR A BICYCLE SPOKED WHEEL, RELATIVE WHEEL AND PROCEDURE FOR THE CREATION OF THIS WHEEL
IT202000018223A1 (en) 2020-07-28 2022-01-28 Campagnolo Srl PROCEDURE AIMED AT THE CREATION OF A SPOKED WHEEL FOR A BICYCLE AND RELATIVE WHEEL

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6846047B2 (en) 2001-09-28 2005-01-25 Rolf Dietrich Tensioned spoked wheel assembly and spoke rim and nipple therefor
WO2006070415A1 (en) * 2004-12-30 2006-07-06 Alpina Raggi S.P.A. Wheel for mounting tires of the tubeless type
TWI386321B (en) * 2009-02-20 2013-02-21 Gigantex Composite Technologies Co Ltd Combination of rim and spoke
TWI403425B (en) * 2009-11-02 2013-08-01 Chang Hui Lin Bicycle spoke strip combination
US20120212036A1 (en) * 2011-02-23 2012-08-23 Shimano Inc. Spoke attachment structure
US8967731B2 (en) * 2011-02-23 2015-03-03 Shimano Inc. Spoke attachment structure
EP3238953A1 (en) * 2016-03-31 2017-11-01 Honda Motor Co., Ltd. Tubeless spoked wheel structure
US10363774B2 (en) 2016-03-31 2019-07-30 Honda Motor Co., Ltd. Tubeless spoked wheel structure

Also Published As

Publication number Publication date
FR2813558A1 (en) 2002-03-08
FR2813558B3 (en) 2002-10-25

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